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What is OTPauth?
OTPauth is an open source, php-based, code library that is a two-factor authentication solution based on RFC 2289 - The One-Time Password. Many sites are already using this type of solution - including many banks in Europe - but there are few open source implementations. For more information see our wiki page on two factor authentication and why one-time passwords are a good poor man"s solution as well as our wiki page on Usage Scenarios.
What makes it a "poor-man"s solution" ? Rather than having the one-time token be expensive token generating devices (such as RSA SecurID) it is distributed using POP (Plain Old Paper). See the screenshot at the bottom of this page for a quick understanding.
This codebase is simple and I
